253991373888056 has 32 divisors (see below), whose sum is σ = 544267992627840. Its totient is φ = 108853293378528.

The previous prime is 253991373888047. The next prime is 253991373888059. The reversal of 253991373888056 is 650888373199352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253991373888059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43091891 + ... + 48630173.

It is an arithmetic number, because the mean of its divisors is an integer number (17008374769620).

Almost surely, 2^{253991373888056} is an apocalyptic number.

It is an amenable number.

253991373888056 is an abundant number, since it is smaller than the sum of its proper divisors (290276618739784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253991373888056 is a wasteful number, since it uses less digits than its factorization.

253991373888056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6357243 (or 6357239 counting only the distinct ones).

The product of its (nonzero) digits is 2351462400, while the sum is 77.

The spelling of 253991373888056 in words is "two hundred fifty-three trillion, nine hundred ninety-one billion, three hundred seventy-three million, eight hundred eighty-eight thousand, fifty-six".